Stain remover with sodium percarbonate which whitens amp sodium carbonate which has a cleaning action can restore whiteness to textiles that have greyed or yellowed over time effective on all types of stain tea coffee red wine and tomato sauce how to use cleaning by hand use two tablespoons of whitening stain remover in 5 liters of hot water leave to act for a maximum 1 hour for tcolours and 5 hours for whites rinse well in a machine add one to two tablespoons of whitening